87223830289 has 2 divisors, whose sum is σ = 87223830290. Its totient is φ = 87223830288.

The previous prime is 87223830283. The next prime is 87223830307. The reversal of 87223830289 is 98203832278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70866699264 + 16357131025 = 266208^2 + 127895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87223830289 is a prime.

It is not a weakly prime, because it can be changed into another prime (87223830283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43611915144 + 43611915145.

It is an arithmetic number, because the mean of its divisors is an integer number (43611915145).

Almost surely, 2^87223830289 is an apocalyptic number.

It is an amenable number.

87223830289 is a deficient number, since it is larger than the sum of its proper divisors (1).

87223830289 is an equidigital number, since it uses as much as digits as its factorization.

87223830289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 87223830289 in words is "eighty-seven billion, two hundred twenty-three million, eight hundred thirty thousand, two hundred eighty-nine".